Can t do loan calculator

Question

I found a solution to do it but my output is bigger than the actual solution by 1 how can i do it?

Answer 1

https://code.sololearn.com/cp6GXE4Rc84v/?ref=app

The reason why you get 54145 is because of Integer division. It ignores decimals (rounding down). Ultimately when you do a minus, you get an extra 1.

1: 100000 - 100000/10 = 90000
2: 90000 - 90000/10 = 81000
3: 81000 - 81000/10 = 72900
4: 72900 - 72900/10 = 65610
5: 65610 - 65610/10 = 59049
6: 59049 - 59049/10
= 59049 - 5904 (missing precision)
= 54145 (extra 1, expected 54144)

To bypass, you can do "amount = amount * 90 / 100".

Do not hard-code -1 or +1.

One good example will be 0. After 6 months, it will still be 0. By hard-coding -1, it results in -1 which is wrong.

Answer 2

Pls post your code otherwise how could i tell what's wrong

Answer 3

Then decrement 1 .
Pls post your code here so that we can help .

Answer 4

When i do solution - 1 the first 2 inputs work with it but the other 3 don t

Answer 5

Use 90% for 6 months to find the balance.
4 lines of code added.

https://code.sololearn.com/cp6GXE4Rc84v/?ref=app

If you are paying 10% every month, one way is to find the 10% and then use your total minus the 10% paid to get the balance.

The other way, is to find the 90% so you don't have to minus.

If you have 100 and you paid 10%,
Method 1: 100 - (100 * 10%) = 90
Method 2: 100 * 90% = 90

The "i=0" is used for looping. It will loop from 0 until 5 (< 6), which is 6 times.

Finally prints out amount.

Answer 6

I did it correct after by trying something else but this is still very helpfull thank you